问题
单项选择题
硬膜外阻滞以下操作不妥的是（）
A.放管至15cm刻度处即退针
B.放管至13cm刻度处遇阻力可快速注水2ml再置管
C.如处理无效即拔出导管，旋转360°再置管
D.回抽导管血流不断应将导管外拔少许至回抽无血
E.回抽导管间断有血可将5mg麻黄碱稀释后注入
答案
参考答案：C
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硬膜外阻滞以下操作不妥的是（）
A.放管至15cm刻度处即退针
B.放管至13cm刻度处遇阻力可快速注水2ml再置管
C.如处理无效即拔出导管，旋转360°再置管
D.回抽导管血流不断应将导管外拔少许至回抽无血
E.回抽导管间断有血可将5mg麻黄碱稀释后注入
参考答案：C
On a cold December morning, my mother and I were walking home from pizza store. We were 35 warmly and equipped with the video we had been trying to watch. I was feeling a little tired 36 I was carrying our shopping bags of snacks and the video. They were so 37 that I decided to throw away some of them. So I started to walk towards the dustbin when I noticed a poor man stepping out of the restaurant in front of us. He held a paper bag with his dirty hand. He 38 over to another nearby dustbin and started looking 39 it. I suddenly felt very upset. I know this man would take all he could get, so I walked up to him and 40 the drink and some snacks to him. The man, with lines on his face and wrinkles(皱纹) on his forehead, looked up in 41 and took what I gave him. A huge smile spread across his face and this made 42 feel indescribable satisfaction(满意). I felt like I couldn’t be happier with myself, but then he said, “Wow, first someone gives me this sandwich, then this drink, and now some tasty food, this is my daughter’s 43 day!” He thanked me happily and started off on his bike. I even heard him whistling(吹哨) a song as he 44 away. I now understand what is meant by the saying “giving is getting”. Everyone in the world needs help, everyone can 45 help and everyone will be helped by something kind. The image(图像) of that man’s happiness 46 by my small gift appears in my mind every time I have the chance to do something nice.
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